Customers enter a Family Dollar store on Plaza Boulevard, in Kinston, N.C. Thereâs now a bidding war for Family Dollar, with Dollar General offering about $9.7 billion for the discounter in an effort to trump Dollar Treeâs bid of $8.5 billion. There's now a bidding war for Family Dollar, with Dollar General offering about $9.7 billion for the discounter in an effort to trump Dollar Tree's bid.
And in Indirect Incidence, both the IR LED and Photo diode are placed in parallel (side by side), facing both in same direction. In that fashion, when a object is kept in front of IR pair, the IR light gets reflected by the object and gets absorbed by photodiode.
The photo cell and R1 form a voltage divider â¢ The voltage on the â terminal is fixed by the Rref1 and Rref2 voltage divider â¢ The comparator takes the difference in voltage between A and Vref â Voltage difference > 0, the LED is on â Voltage difference < 0, the LED is off.